Direct electronic mailing may start only after a user
subscribes to it by sending a request to a special email address
(or otherwise subscribes in an explicit manner).
Each subscription must be confirmed, so that no one can
subscribe someone else's address. The confirmation is done by
sending an email message containing a unique code to the user.
To confirm the reception of the message and give consent to be
subscribed, the user must reply to it or click the link
contained in the message.
The subscriber has the right to unsubscribe at any time.
Provide an easy way to unsubscribe (by sending an email message
or clicking a link). Each email message must contain
instructions for unsubscribing.
Save the evidence of each subscriber's consent to receive
direct emails, so that you can show it in case of a complaint.
The list of subscribers' email addresses must be kept secret;
it cannot be given to any third party or used for other
electronic mailing lists, to which the users did not subscribe.